XML 102 R87.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment and Related Information, Sales By Region Category (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jul. 01, 2018 | Apr. 01, 2018 | Dec. 31, 2017 | Oct. 01, 2017 | Jul. 02, 2017 | Apr. 02, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 447.5 | $ 464.1 | $ 464.7 | $ 431.3 | $ 432.1 | $ 424.5 | $ 414.1 | $ 405.0 | $ 1,807.6 | $ 1,675.7 | $ 1,638.0
Long-lived assets | 2,129.4 |  |  |  | 2,037.1 |  |  |  | 2,129.4 | 2,037.1 | 2,034.8
Total International [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 846.0 | 736.4 | 701.8
Long-lived assets | 361.7 |  |  |  | 262.7 |  |  |  | 361.7 | 262.7 | 240.3
Reportable Geographical Components [Member] | United States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 961.6 | 939.3 | 936.2
Long-lived assets | 1,767.7 |  |  |  | 1,774.4 |  |  |  | 1,767.7 | 1,774.4 | 1,794.5
Reportable Geographical Components [Member] | Canada/Latin America [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 83.7 | 81.6 | 82.6
Long-lived assets | 13.7 |  |  |  | 14.8 |  |  |  | 13.7 | 14.8 | 14.8
Reportable Geographical Components [Member] | Europe/Africa [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 443.4 | 349.0 | 338.8
Long-lived assets | 225.0 |  |  |  | 115.9 |  |  |  | 225.0 | 115.9 | 98.2
Reportable Geographical Components [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 318.9 | 305.8 | 280.4
Long-lived assets | $ 123.0 |  |  |  | $ 132.0 |  |  |  | $ 123.0 | $ 132.0 | $ 127.3

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=mtx_TotalInternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=srt_ReportableGeographicalComponentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=mtx_CanadaLatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=mtx_EuropeAfricaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |